I have a set of these. Being sold separately.  This one is amber lens that says R/R. The lens measures about 11" so not sure if this would be considered a 12", its bigger than 10". The other is red with stop. This listing is for the one you see in pictures. I was thinking of keeping these but thought I'd throw them on here to see if I get much interest. These have lights in them that you can plug in for display. The overall condition is good. Please look over pictures closely. Thanks for looking